Home / 143,002.68-214,506.18-68,130.60

Finding the Fourth Proportional to 143,002.68, 214,506.18 and 68,130.60

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Solution

The fourth proportional to 143,002.68, 214,506.18 and 68,130.60 is: 102,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,002.68 : 214,506.18 = 68,130.60 : x
  2. Step 2: Convert to fraction form
    143,002.68/214,506.18 = 68,130.60/x
  3. Step 3: Cross multiply
    143,002.68x = 214,506.18 × 68,130.60
  4. Step 4: Simplify right side
    143,002.68x = 14,614,434,747.11
  5. Step 5: Solve for x
    x = 14,614,434,747.11/143,002.68
  6. Step 6: Final answer
    x = 102,196.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.